<html>
<head>
<script language='javascript' src="popcalendar.js"></script> 
</head>
<body>
        <center> 
         <form name="form1" method="post">
           Calendario<input name="nombre_de_la_caja" type="text" id="dateArrival" onClick="popUpCalendar(this, form1.dateArrival, 'mm-dd-yyyy');" size="10">
        </form>
		  </center>
      
</html>